I'm having several strange problems with installing 12.10 on this notebook.
First, it seemed to install correctly but I was receiving "invalid partition table" upon boot. At that time I was unfamiliar with UEFI, this is a new laptop and I haven't had one that uses that before.
After a few tries of reinstalling attempting to fix the booting issue, (which I later discovered could be fixed by manually booting the ubuntu option under the UEFI menu in the one-time boot menu), the ubuntu installer now simply hangs before it starts. I see the Ubuntu logo and the moving dots beneath it, and after a few moments they cease moving and the system hangs. Once in awhile it also crashes to a prompt, stating a general failure.
Windows 7 still works fine when I reinstalled it. I've tried using the 'help me boot from CD' option from the 12.10 install disc, but that didn't fix the issue.
I'm guessing there may be something broken in the original install I attempted, and I think if I could somehow remove that from the UEFI configuration it would allow me to install again, but this is only a guess, and I dont know how to remove that from UEFI. Any help is appreciated.